Massachusetts Dams
1,291 dams tracked by the National Inventory of Dams
Total Dams
1,291
High Hazard
319
24.7%
Poor / Unsatisfactory
336
Average Age
112 yrs
Hazard Classification
High319 (24.7%)
Significant616 (47.7%)
Low356 (27.6%)
Condition Assessment
Satisfactory441 (34.2%)
Fair464 (35.9%)
Poor / Unsatisfactory336 (26.0%)
Not Rated50 (3.9%)
Federal
15
State
211
Local
585
Private
451
Tallest Dams
- Cobble Mountain Reservoir Dam245 ft
- Quabbin Winsor Dam170 ft
- Littleville Dam164 ft
- Bear Swamp - North Dike 155 ft
- Knightville Dam150 ft
High Hazard Dams
Poor Condition Dams
All Dams in Massachusetts
Showing 101–125 of 441
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Schencks Pond Dam Middlesex County | 22 | 1940 | High | Satisfactory |
| Sargent Pond Dam Worcester County | 15 | — | Significant | Satisfactory |
| Santuit Pond Dam Barnstable County | 8 | — | Significant | Satisfactory |
| Salisbury Pond Dam Worcester County | 13 | 1953 | Significant | Satisfactory |
| Russell Pond Dam Plymouth County | 10 | — | Significant | Satisfactory |
| Russell Mill Pond Dam Middlesex County | 18 | 1954 | Significant | Satisfactory |
| Russell Mill Pond Plymouth County | 25 | 1898 | Low | Satisfactory |
| Russell Harrington Mill Pond Dam Worcester County | 20 | 1917 | Significant | Satisfactory |
| Russell Hampden County | 30 | 1905 | Low | Satisfactory |
| Rudd Pond Dam and Dike Berkshire County | 12 | 1920 | Low | Satisfactory |
| Route 25 No. 1 Dam Plymouth County | 16 | 1964 | High | Satisfactory |
| Round Pond Dam Berkshire County | 19 | 1963 | Low | Satisfactory |
| Rosemary Lake Dam Norfolk County | 12 | 1830 | High | Satisfactory |
| Robin Hood Lake Dam Berkshire County | 17 | 2013 | Significant | Satisfactory |
| Riverdale Mills Worcester County | 10 | 1957 | Low | Satisfactory |
| Rising Paper Company Dam Berkshire County | 38 | — | Significant | Satisfactory |
| Revere Street Dam Norfolk County | 12 | 1774 | Significant | Satisfactory |
| Reservoir Pond Dam Norfolk County | 11 | — | Significant | Satisfactory |
| Reservoir No. 5 Dam Worcester County | 31 | 1900 | Low | Satisfactory |
| Reservoir No. 4 Dam Worcester County | 30 | 1965 | Significant | Satisfactory |
| Red Dam Worcester County | 15 | — | High | Satisfactory |
| Recreation Pond Dam Worcester County | 7 | — | Significant | Satisfactory |
| Rawson Hill Brook Dam Worcester County | 16 | 1963 | Significant | Satisfactory |
| Ramshorn Pond Dam Worcester County | 25 | 1825 | High | Satisfactory |
| Quinebaug River Pond Dam Worcester County | 13 | 1919 | Low | Satisfactory |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.